<table border="1" mj_done="true">
    <thead>
    <tr>
        <th>序号</th>
        <th>编号</th>
        <th>题目</th>
        <th>通过率</th>
        <th>难度</th>
        <th>出题指数</th>
        <th>出现频率</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td>1</td>
        <td>244</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-word-distance-ii/">最短单词距离 II</a></td>
        <td>47.2%</td>
        <td>中等</td>
        <td>5</td>
        <td>4.744</td>
    </tr>
    <tr>
        <td>2</td>
        <td>364</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nested-list-weight-sum-ii/">加权嵌套序列和 II</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>5.303</td>
    </tr>
    <tr>
        <td>3</td>
        <td>1</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum/">两数之和</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.35</td>
    </tr>
    <tr>
        <td>4</td>
        <td>339</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nested-list-weight-sum/">嵌套列表权重和</a></td>
        <td>79.8%</td>
        <td>简单</td>
        <td>5</td>
        <td>4.446</td>
    </tr>
    <tr>
        <td>5</td>
        <td>53</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-subarray/">最大子序和</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.874</td>
    </tr>
    <tr>
        <td>6</td>
        <td>170</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum-iii-data-structure-design/">两数之和 III -
            数据结构设计</a></td>
        <td>40.4%</td>
        <td>简单</td>
        <td>5</td>
        <td>4.068</td>
    </tr>
    <tr>
        <td>7</td>
        <td>50</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/powx-n/">Pow(x, n)</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.287</td>
    </tr>
    <tr>
        <td>8</td>
        <td>380</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-delete-getrandom-o1/">常数时间插入、删除和获取随机元素</a>
        </td>
        <td>47.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.663</td>
    </tr>
    <tr>
        <td>9</td>
        <td>200</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands/">岛屿数量</a></td>
        <td>46.9%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.233</td>
    </tr>
    <tr>
        <td>10</td>
        <td>65</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-number/">有效数字</a></td>
        <td>17.9%</td>
        <td>困难</td>
        <td>5</td>
        <td>2.551</td>
    </tr>
    <tr>
        <td>11</td>
        <td>243</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-word-distance/">最短单词距离</a></td>
        <td>63.8%</td>
        <td>简单</td>
        <td>5</td>
        <td>3.452</td>
    </tr>
    <tr>
        <td>12</td>
        <td>56</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-intervals/">合并区间</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.108</td>
    </tr>
    <tr>
        <td>13</td>
        <td>149</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-points-on-a-line/">直线上最多的点数</a></td>
        <td>20.4%</td>
        <td>困难</td>
        <td>5</td>
        <td>2.56</td>
    </tr>
    <tr>
        <td>14</td>
        <td>297</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree/">二叉树的序列化与反序列化</a>
        </td>
        <td>44.2%</td>
        <td>困难</td>
        <td>5</td>
        <td>1.984</td>
    </tr>
    <tr>
        <td>15</td>
        <td>716</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-stack/">最大栈</a></td>
        <td>42.7%</td>
        <td>简单</td>
        <td>5</td>
        <td>4.003</td>
    </tr>
    <tr>
        <td>16</td>
        <td>605</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/can-place-flowers/">种花问题</a></td>
        <td>31.1%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.938</td>
    </tr>
    <tr>
        <td>17</td>
        <td>150</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/evaluate-reverse-polish-notation/">逆波兰表达式求值</a>
        </td>
        <td>49.0%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.489</td>
    </tr>
    <tr>
        <td>18</td>
        <td>152</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-subarray/">乘积最大子序列</a></td>
        <td>37.0%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.27</td>
    </tr>
    <tr>
        <td>19</td>
        <td>205</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/isomorphic-strings/">同构字符串</a></td>
        <td>47.1%</td>
        <td>简单</td>
        <td>5</td>
        <td>1.571</td>
    </tr>
    <tr>
        <td>20</td>
        <td>272</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/closest-binary-search-tree-value-ii/">最接近的二叉搜索树值
            II</a></td>
        <td>57.3%</td>
        <td>困难</td>
        <td>5</td>
        <td>4.285</td>
    </tr>
    <tr>
        <td>21</td>
        <td>256</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-house/">粉刷房子</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>5</td>
        <td>3.089</td>
    </tr>
    <tr>
        <td>22</td>
        <td>20</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parentheses/">有效的括号</a></td>
        <td>40.8%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.434</td>
    </tr>
    <tr>
        <td>23</td>
        <td>366</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-leaves-of-binary-tree/">寻找完全二叉树的叶子节点</a></td>
        <td>71.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>4.233</td>
    </tr>
    <tr>
        <td>24</td>
        <td>341</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-nested-list-iterator/">扁平化嵌套列表迭代器</a></td>
        <td>62.0%</td>
        <td>中等</td>
        <td>5</td>
        <td>2.45</td>
    </tr>
    <tr>
        <td>25</td>
        <td>33</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array/">搜索旋转排序数组</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.788</td>
    </tr>
    <tr>
        <td>26</td>
        <td>68</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/text-justification/">文本左右对齐</a></td>
        <td>42.1%</td>
        <td>困难</td>
        <td>5</td>
        <td>2.502</td>
    </tr>
    <tr>
        <td>27</td>
        <td>102</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal/">二叉树的层次遍历</a>
        </td>
        <td>60.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.762</td>
    </tr>
    <tr>
        <td>28</td>
        <td>236</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree/">二叉树的最近公共祖先</a>
        </td>
        <td>59.7%</td>
        <td>中等</td>
        <td>5</td>
        <td>1.083</td>
    </tr>
    <tr>
        <td>29</td>
        <td>156</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-upside-down/">上下翻转二叉树</a></td>
        <td>73.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.401</td>
    </tr>
    <tr>
        <td>30</td>
        <td>76</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-window-substring/">最小覆盖子串</a></td>
        <td>35.3%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.345</td>
    </tr>
    <tr>
        <td>31</td>
        <td>34</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/">在排序数组中查找元素的第一个和最后一个位置</a>
        </td>
        <td>38.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.683</td>
    </tr>
    <tr>
        <td>32</td>
        <td>72</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/edit-distance/">编辑距离</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.09</td>
    </tr>
    <tr>
        <td>33</td>
        <td>254</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/factor-combinations/">因子的组合</a></td>
        <td>54.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.67</td>
    </tr>
    <tr>
        <td>34</td>
        <td>235</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree/">二叉搜索树的最近公共祖先</a>
        </td>
        <td>62.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>1.056</td>
    </tr>
    <tr>
        <td>35</td>
        <td>12</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-roman/">整数转罗马数字</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.694</td>
    </tr>
    <tr>
        <td>36</td>
        <td>13</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/roman-to-integer/">罗马数字转整数</a></td>
        <td>60.6%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.414</td>
    </tr>
    <tr>
        <td>37</td>
        <td>127</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder/">单词接龙</a></td>
        <td>39.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.248</td>
    </tr>
    <tr>
        <td>38</td>
        <td>265</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-house-ii/">粉刷房子 II</a></td>
        <td>51.2%</td>
        <td>困难</td>
        <td>4</td>
        <td>3.472</td>
    </tr>
    <tr>
        <td>39</td>
        <td>46</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations/">全排列</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.584</td>
    </tr>
    <tr>
        <td>40</td>
        <td>69</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sqrtx/">x 的平方根</a></td>
        <td>37.5%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.554</td>
    </tr>
    <tr>
        <td>41</td>
        <td>432</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/all-oone-data-structure/">全 O(1) 的数据结构</a></td>
        <td>34.3%</td>
        <td>困难</td>
        <td>4</td>
        <td>3.205</td>
    </tr>
    <tr>
        <td>42</td>
        <td>516</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-subsequence/">最长回文子序列</a></td>
        <td>49.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.637</td>
    </tr>
    <tr>
        <td>43</td>
        <td>104</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/">二叉树的最大深度</a></td>
        <td>72.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.378</td>
    </tr>
    <tr>
        <td>44</td>
        <td>146</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lru-cache/">LRU缓存机制</a></td>
        <td>45.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.904</td>
    </tr>
    <tr>
        <td>45</td>
        <td>187</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-dna-sequences/">重复的DNA序列</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.632</td>
    </tr>
    <tr>
        <td>46</td>
        <td>215</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-an-array/">数组中的第K个最大元素</a>
        </td>
        <td>60.9%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.558</td>
    </tr>
    <tr>
        <td>47</td>
        <td>101</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/symmetric-tree/">对称二叉树</a></td>
        <td>49.9%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.408</td>
    </tr>
    <tr>
        <td>48</td>
        <td>698</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-to-k-equal-sum-subsets/">划分为k个相等的子集</a>
        </td>
        <td>40.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>1.981</td>
    </tr>
    <tr>
        <td>49</td>
        <td>261</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/graph-valid-tree/">以图判树</a></td>
        <td>44.6%</td>
        <td>中等</td>
        <td>4</td>
        <td>3.101</td>
    </tr>
    <tr>
        <td>50</td>
        <td>611</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-triangle-number/">有效三角形的个数</a></td>
        <td>48.1%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.378</td>
    </tr>
    <tr>
        <td>51</td>
        <td>273</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-english-words/">整数转换英文表示</a></td>
        <td>26.1%</td>
        <td>困难</td>
        <td>4</td>
        <td>2.28</td>
    </tr>
    <tr>
        <td>52</td>
        <td>160</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-linked-lists/">相交链表</a></td>
        <td>52.1%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.47</td>
    </tr>
    <tr>
        <td>53</td>
        <td>57</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-interval/">插入区间</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>4</td>
        <td>1.228</td>
    </tr>
    <tr>
        <td>54</td>
        <td>8</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-to-integer-atoi/">字符串转换整数 (atoi)</a></td>
        <td>19.0%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.355</td>
    </tr>
    <tr>
        <td>55</td>
        <td>277</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-celebrity/">搜寻名人</a></td>
        <td>57.8%</td>
        <td>中等</td>
        <td>4</td>
        <td>2.549</td>
    </tr>
    <tr>
        <td>56</td>
        <td>671</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/second-minimum-node-in-a-binary-tree/">二叉树中第二小的节点</a></td>
        <td>45.0%</td>
        <td>简单</td>
        <td>3</td>
        <td>1.479</td>
    </tr>
    <tr>
        <td>57</td>
        <td>636</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/exclusive-time-of-functions/">函数的独占时间</a></td>
        <td>48.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.468</td>
    </tr>
    <tr>
        <td>58</td>
        <td>151</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string/">翻转字符串里的单词</a></td>
        <td>35.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.732</td>
    </tr>
    <tr>
        <td>59</td>
        <td>384</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shuffle-an-array/">打乱数组</a></td>
        <td>49.3%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.24</td>
    </tr>
    <tr>
        <td>60</td>
        <td>245</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-word-distance-iii/">最短单词距离 III</a></td>
        <td>63.1%</td>
        <td>中等</td>
        <td>3</td>
        <td>2.674</td>
    </tr>
    <tr>
        <td>61</td>
        <td>5</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-substring/">最长回文子串</a></td>
        <td>28.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.177</td>
    </tr>
    <tr>
        <td>62</td>
        <td>23</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-k-sorted-lists/">合并K个排序链表</a></td>
        <td>48.7%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.368</td>
    </tr>
    <tr>
        <td>63</td>
        <td>47</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations-ii/">全排列 II</a></td>
        <td>56.8%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.535</td>
    </tr>
    <tr>
        <td>64</td>
        <td>373</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-k-pairs-with-smallest-sums/">查找和最小的K对数字</a>
        </td>
        <td>40.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.701</td>
    </tr>
    <tr>
        <td>65</td>
        <td>282</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/expression-add-operators/">给表达式添加运算符</a></td>
        <td>32.0%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.322</td>
    </tr>
    <tr>
        <td>66</td>
        <td>100</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/same-tree/">相同的树</a></td>
        <td>56.4%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.324</td>
    </tr>
    <tr>
        <td>67</td>
        <td>412</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fizz-buzz/">Fizz Buzz</a></td>
        <td>62.6%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.738</td>
    </tr>
    <tr>
        <td>68</td>
        <td>21</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-sorted-lists/">合并两个有序链表</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.141</td>
    </tr>
    <tr>
        <td>69</td>
        <td>103</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal/">二叉树的锯齿形层次遍历</a>
        </td>
        <td>53.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.493</td>
    </tr>
    <tr>
        <td>70</td>
        <td>730</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-different-palindromic-subsequences/">统计不同回文子字符串</a>
        </td>
        <td>45.1%</td>
        <td>困难</td>
        <td>3</td>
        <td>3.367</td>
    </tr>
    <tr>
        <td>71</td>
        <td>322</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change/">零钱兑换</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.458</td>
    </tr>
    <tr>
        <td>72</td>
        <td>744</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-smallest-letter-greater-than-target/">寻找比目标字母大的最小字母</a>
        </td>
        <td>44.4%</td>
        <td>简单</td>
        <td>3</td>
        <td>1.037</td>
    </tr>
    <tr>
        <td>73</td>
        <td>88</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-sorted-array/">合并两个有序数组</a></td>
        <td>46.5%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.201</td>
    </tr>
    <tr>
        <td>74</td>
        <td>126</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder-ii/">单词接龙 II</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>3</td>
        <td>1.38</td>
    </tr>
    <tr>
        <td>75</td>
        <td>381</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-delete-getrandom-o1-duplicates-allowed/">O(1)
            时间插入、删除和获取随机元素 - 允许重复</a></td>
        <td>36.6%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.228</td>
    </tr>
    <tr>
        <td>76</td>
        <td>464</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/can-i-win/">我能赢吗</a></td>
        <td>33.3%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.778</td>
    </tr>
    <tr>
        <td>77</td>
        <td>155</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/min-stack/">最小栈</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.25</td>
    </tr>
    <tr>
        <td>78</td>
        <td>173</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-search-tree-iterator/">二叉搜索树迭代器</a></td>
        <td>70.7%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.727</td>
    </tr>
    <tr>
        <td>79</td>
        <td>198</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber/">打家劫舍</a></td>
        <td>42.8%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.214</td>
    </tr>
    <tr>
        <td>80</td>
        <td>15</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum/">三数之和</a></td>
        <td>25.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.128</td>
    </tr>
    <tr>
        <td>81</td>
        <td>319</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bulb-switcher/">灯泡开关</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.162</td>
    </tr>
    <tr>
        <td>82</td>
        <td>349</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays/">两个数组的交集</a></td>
        <td>68.0%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.375</td>
    </tr>
    <tr>
        <td>83</td>
        <td>449</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/serialize-and-deserialize-bst/">序列化和反序列化二叉搜索树</a>
        </td>
        <td>50.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>1.525</td>
    </tr>
    <tr>
        <td>84</td>
        <td>706</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-hashmap/">设计哈希映射</a></td>
        <td>55.8%</td>
        <td>简单</td>
        <td>3</td>
        <td>1.101</td>
    </tr>
    <tr>
        <td>85</td>
        <td>81</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array-ii/">搜索旋转排序数组
            II</a></td>
        <td>34.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.608</td>
    </tr>
    <tr>
        <td>86</td>
        <td>300</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-increasing-subsequence/">最长上升子序列</a></td>
        <td>43.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.348</td>
    </tr>
    <tr>
        <td>87</td>
        <td>238</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/product-of-array-except-self/">除自身以外数组的乘积</a></td>
        <td>66.0%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.459</td>
    </tr>
    <tr>
        <td>88</td>
        <td>367</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-perfect-square/">有效的完全平方数</a></td>
        <td>43.0%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.558</td>
    </tr>
    <tr>
        <td>89</td>
        <td>2</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers/">两数相加</a></td>
        <td>36.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>90</td>
        <td>311</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sparse-matrix-multiplication/">稀疏矩阵的乘法</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>2.398</td>
    </tr>
    <tr>
        <td>91</td>
        <td>4</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/median-of-two-sorted-arrays/">寻找两个有序数组的中位数</a>
        </td>
        <td>36.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.133</td>
    </tr>
    <tr>
        <td>92</td>
        <td>39</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum/">组合总和</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.231</td>
    </tr>
    <tr>
        <td>93</td>
        <td>40</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum-ii/">组合总和 II</a></td>
        <td>59.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.318</td>
    </tr>
    <tr>
        <td>94</td>
        <td>460</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lfu-cache/">LFU缓存</a></td>
        <td>33.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.845</td>
    </tr>
    <tr>
        <td>95</td>
        <td>547</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-circles/">朋友圈</a></td>
        <td>54.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.538</td>
    </tr>
    <tr>
        <td>96</td>
        <td>3</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/">无重复字符的最长子串</a>
        </td>
        <td>32.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.059</td>
    </tr>
    <tr>
        <td>97</td>
        <td>54</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix/">螺旋矩阵</a></td>
        <td>38.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.27</td>
    </tr>
    <tr>
        <td>98</td>
        <td>61</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-list/">旋转链表</a></td>
        <td>39.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.271</td>
    </tr>
    <tr>
        <td>99</td>
        <td>121</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/">买卖股票的最佳时机</a>
        </td>
        <td>52.3%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.114</td>
    </tr>
    <tr>
        <td>100</td>
        <td>739</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/daily-temperatures/">每日温度</a></td>
        <td>58.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.369</td>
    </tr>
    <tr>
        <td>101</td>
        <td>153</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array/">寻找旋转排序数组中的最小值</a>
        </td>
        <td>50.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.356</td>
    </tr>
    <tr>
        <td>102</td>
        <td>98</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-binary-search-tree/">验证二叉搜索树</a></td>
        <td>28.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.182</td>
    </tr>
    <tr>
        <td>103</td>
        <td>350</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays-ii/">两个数组的交集 II</a>
        </td>
        <td>46.4%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.234</td>
    </tr>
    <tr>
        <td>104</td>
        <td>141</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle/">环形链表</a></td>
        <td>46.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.114</td>
    </tr>
    <tr>
        <td>105</td>
        <td>450</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-node-in-a-bst/">删除二叉搜索树中的节点</a></td>
        <td>37.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.771</td>
    </tr>
    <tr>
        <td>106</td>
        <td>199</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-right-side-view/">二叉树的右视图</a></td>
        <td>63.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.407</td>
    </tr>
    <tr>
        <td>107</td>
        <td>695</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-area-of-island/">岛屿的最大面积</a></td>
        <td>59.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.5</td>
    </tr>
    <tr>
        <td>108</td>
        <td>7</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-integer/">整数反转</a></td>
        <td>33.6%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.05</td>
    </tr>
    <tr>
        <td>109</td>
        <td>528</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/random-pick-with-weight/">按权重随机选择</a></td>
        <td>40.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.659</td>
    </tr>
    <tr>
        <td>110</td>
        <td>17</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/">电话号码的字母组合</a></td>
        <td>52.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.115</td>
    </tr>
    <tr>
        <td>111</td>
        <td>35</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-insert-position/">搜索插入位置</a></td>
        <td>45.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.094</td>
    </tr>
    <tr>
        <td>112</td>
        <td>70</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/climbing-stairs/">爬楼梯</a></td>
        <td>47.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>113</td>
        <td>296</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-meeting-point/">最佳的碰头地点</a></td>
        <td>62.0%</td>
        <td>困难</td>
        <td>2</td>
        <td>2.398</td>
    </tr>
    <tr>
        <td>114</td>
        <td>323</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/number-of-connected-components-in-an-undirected-graph/">无向图中连通分量的数目</a>
        </td>
        <td>54.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.806</td>
    </tr>
    <tr>
        <td>115</td>
        <td>655</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-binary-tree/">输出二叉树</a></td>
        <td>53.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>1.445</td>
    </tr>
    <tr>
        <td>116</td>
        <td>973</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/k-closest-points-to-origin/">最接近原点的 K 个点</a></td>
        <td>57.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.632</td>
    </tr>
    <tr>
        <td>117</td>
        <td>226</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/invert-binary-tree/">翻转二叉树</a></td>
        <td>73.7%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.156</td>
    </tr>
    <tr>
        <td>118</td>
        <td>347</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-elements/">前 K 个高频元素</a></td>
        <td>60.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.241</td>
    </tr>
    <tr>
        <td>119</td>
        <td>139</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break/">单词拆分</a></td>
        <td>43.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.235</td>
    </tr>
    <tr>
        <td>120</td>
        <td>230</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst/">二叉搜索树中第K小的元素</a>
        </td>
        <td>68.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.282</td>
    </tr>
    <tr>
        <td>121</td>
        <td>253</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms-ii/">会议室 II</a></td>
        <td>40.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.85</td>
    </tr>
    <tr>
        <td>122</td>
        <td>31</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-permutation/">下一个排列</a></td>
        <td>32.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.15</td>
    </tr>
    <tr>
        <td>123</td>
        <td>41</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-missing-positive/">缺失的第一个正数</a></td>
        <td>37.5%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.218</td>
    </tr>
    <tr>
        <td>124</td>
        <td>42</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water/">接雨水</a></td>
        <td>48.4%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.145</td>
    </tr>
    <tr>
        <td>125</td>
        <td>451</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-characters-by-frequency/">根据字符出现频率排序</a></td>
        <td>61.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.438</td>
    </tr>
    <tr>
        <td>126</td>
        <td>79</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search/">单词搜索</a></td>
        <td>40.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.187</td>
    </tr>
    <tr>
        <td>127</td>
        <td>133</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/clone-graph/">克隆图</a></td>
        <td>48.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.452</td>
    </tr>
    <tr>
        <td>128</td>
        <td>75</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-colors/">颜色分类</a></td>
        <td>54.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.14</td>
    </tr>
    <tr>
        <td>129</td>
        <td>74</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix/">搜索二维矩阵</a></td>
        <td>37.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.211</td>
    </tr>
    <tr>
        <td>130</td>
        <td>647</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindromic-substrings/">回文子串</a></td>
        <td>60.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.294</td>
    </tr>
    <tr>
        <td>131</td>
        <td>1117</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/building-h2o/">H2O 生成</a></td>
        <td>44.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.941</td>
    </tr>
    <tr>
        <td>132</td>
        <td>1188</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-bounded-blocking-queue/">设计有限阻塞队列</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>2.332</td>
    </tr>
    <tr>
        <td>133</td>
        <td>239</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sliding-window-maximum/">滑动窗口最大值</a></td>
        <td>43.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.216</td>
    </tr>
    <tr>
        <td>134</td>
        <td>416</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-equal-subset-sum/">分割等和子集</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.319</td>
    </tr>
    <tr>
        <td>135</td>
        <td>658</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-k-closest-elements/">找到 K 个最接近的元素</a></td>
        <td>42.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.801</td>
    </tr>
    <tr>
        <td>136</td>
        <td>715</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-module/">Range 模块</a></td>
        <td>32.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.082</td>
    </tr>
    <tr>
        <td>137</td>
        <td>796</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-string/">旋转字符串</a></td>
        <td>49.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.67</td>
    </tr>
    <tr>
        <td>138</td>
        <td>270</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/closest-binary-search-tree-value/">最接近的二叉搜索树值</a>
        </td>
        <td>50.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.946</td>
    </tr>
    <tr>
        <td>139</td>
        <td>352</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/data-stream-as-disjoint-intervals/">将数据流变为多个不相交区间</a></td>
        <td>51.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.722</td>
    </tr>
    <tr>
        <td>140</td>
        <td>535</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/encode-and-decode-tinyurl/">TinyURL 的加密与解密</a>
        </td>
        <td>81.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.755</td>
    </tr>
    <tr>
        <td>141</td>
        <td>692</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-words/">前K个高频单词</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.596</td>
    </tr>
    <tr>
        <td>142</td>
        <td>430</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-a-multilevel-doubly-linked-list/">扁平化多级双向链表</a>
        </td>
        <td>45.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.644</td>
    </tr>
    <tr>
        <td>143</td>
        <td>78</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subsets/">子集</a></td>
        <td>76.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>144</td>
        <td>110</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/balanced-binary-tree/">平衡二叉树</a></td>
        <td>50.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.123</td>
    </tr>
    <tr>
        <td>145</td>
        <td>344</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string/">反转字符串</a></td>
        <td>68.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.088</td>
    </tr>
    <tr>
        <td>146</td>
        <td>382</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-random-node/">链表随机节点</a></td>
        <td>54.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.939</td>
    </tr>
    <tr>
        <td>147</td>
        <td>114</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list/">二叉树展开为链表</a>
        </td>
        <td>67.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.182</td>
    </tr>
    <tr>
        <td>148</td>
        <td>259</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum-smaller/">较小的三数之和</a></td>
        <td>56.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.174</td>
    </tr>
    <tr>
        <td>149</td>
        <td>26</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/">删除排序数组中的重复项</a></td>
        <td>48.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.031</td>
    </tr>
    <tr>
        <td>150</td>
        <td>515</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row/">在每个树行中找最大值</a></td>
        <td>58.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.449</td>
    </tr>
    <tr>
        <td>151</td>
        <td>1127</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/user-purchase-platform/">用户购买平台</a></td>
        <td>49.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.14</td>
    </tr>
    <tr>
        <td>152</td>
        <td>10</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/regular-expression-matching/">正则表达式匹配</a></td>
        <td>26.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.092</td>
    </tr>
    <tr>
        <td>153</td>
        <td>16</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum-closest/">最接近的三数之和</a></td>
        <td>42.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>154</td>
        <td>60</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutation-sequence/">第k个排列</a></td>
        <td>48.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>155</td>
        <td>125</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome/">验证回文串</a></td>
        <td>42.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>156</td>
        <td>224</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator/">基本计算器</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.419</td>
    </tr>
    <tr>
        <td>157</td>
        <td>362</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-hit-counter/">敲击计数器</a></td>
        <td>69.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.329</td>
    </tr>
    <tr>
        <td>158</td>
        <td>387</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/first-unique-character-in-a-string/">字符串中的第一个唯一字符</a></td>
        <td>43.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.118</td>
    </tr>
    <tr>
        <td>159</td>
        <td>785</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/is-graph-bipartite/">判断二分图</a></td>
        <td>42.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.668</td>
    </tr>
    <tr>
        <td>160</td>
        <td>113</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/path-sum-ii/">路径总和 II</a></td>
        <td>58.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.148</td>
    </tr>
    <tr>
        <td>161</td>
        <td>128</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-consecutive-sequence/">最长连续序列</a></td>
        <td>47.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>162</td>
        <td>142</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle-ii/">环形链表 II</a></td>
        <td>48.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.09</td>
    </tr>
    <tr>
        <td>163</td>
        <td>207</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule/">课程表</a></td>
        <td>49.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.186</td>
    </tr>
    <tr>
        <td>164</td>
        <td>240</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix-ii/">搜索二维矩阵 II</a></td>
        <td>38.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.133</td>
    </tr>
    <tr>
        <td>165</td>
        <td>377</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum-iv/">组合总和 Ⅳ</a></td>
        <td>41.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.417</td>
    </tr>
    <tr>
        <td>166</td>
        <td>122</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii/">买卖股票的最佳时机
            II</a></td>
        <td>57.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.052</td>
    </tr>
    <tr>
        <td>167</td>
        <td>138</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/copy-list-with-random-pointer/">复制带随机指针的链表</a>
        </td>
        <td>43.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.204</td>
    </tr>
    <tr>
        <td>168</td>
        <td>463</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/island-perimeter/">岛屿的周长</a></td>
        <td>65.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.343</td>
    </tr>
    <tr>
        <td>169</td>
        <td>879</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/profitable-schemes/">盈利计划</a></td>
        <td>30.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.865</td>
    </tr>
    <tr>
        <td>170</td>
        <td>721</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/accounts-merge/">账户合并</a></td>
        <td>31.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.935</td>
    </tr>
    <tr>
        <td>171</td>
        <td>167</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted/">两数之和 II -
            输入有序数组</a></td>
        <td>52.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>172</td>
        <td>185</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-top-three-salaries/">部门工资前三高的所有员工</a>
        </td>
        <td>41.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.389</td>
    </tr>
    <tr>
        <td>173</td>
        <td>186</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string-ii/">翻转字符串里的单词 II</a>
        </td>
        <td>71.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.852</td>
    </tr>
    <tr>
        <td>174</td>
        <td>208</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-trie-prefix-tree/">实现 Trie (前缀树)</a>
        </td>
        <td>64.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.165</td>
    </tr>
    <tr>
        <td>175</td>
        <td>210</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule-ii/">课程表 II</a></td>
        <td>46.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.277</td>
    </tr>
    <tr>
        <td>176</td>
        <td>218</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-skyline-problem/">天际线问题</a></td>
        <td>40.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.634</td>
    </tr>
    <tr>
        <td>177</td>
        <td>252</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms/">会议室</a></td>
        <td>51.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.751</td>
    </tr>
    <tr>
        <td>178</td>
        <td>278</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-bad-version/">第一个错误的版本</a></td>
        <td>36.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.151</td>
    </tr>
    <tr>
        <td>179</td>
        <td>346</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/moving-average-from-data-stream/">数据流中的移动平均值</a>
        </td>
        <td>69.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.749</td>
    </tr>
    <tr>
        <td>180</td>
        <td>468</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-ip-address/">验证IP地址</a></td>
        <td>21.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.587</td>
    </tr>
    <tr>
        <td>181</td>
        <td>1343</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold/">大小为
            K 且平均值大于等于阈值的子数组数目</a></td>
        <td>56.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.272</td>
    </tr>
    <tr>
        <td>182</td>
        <td>1148</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/article-views-i/">文章浏览 I</a></td>
        <td>76.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.863</td>
    </tr>
    <tr>
        <td>183</td>
        <td>24</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/swap-nodes-in-pairs/">两两交换链表中的节点</a></td>
        <td>64.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>184</td>
        <td>25</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-nodes-in-k-group/">K 个一组翻转链表</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.087</td>
    </tr>
    <tr>
        <td>185</td>
        <td>28</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-strstr/">实现 strStr()</a></td>
        <td>39.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.034</td>
    </tr>
    <tr>
        <td>186</td>
        <td>44</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wildcard-matching/">通配符匹配</a></td>
        <td>26.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.139</td>
    </tr>
    <tr>
        <td>187</td>
        <td>58</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/length-of-last-word/">最后一个单词的长度</a></td>
        <td>32.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.051</td>
    </tr>
    <tr>
        <td>188</td>
        <td>59</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix-ii/">螺旋矩阵 II</a></td>
        <td>76.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.113</td>
    </tr>
    <tr>
        <td>189</td>
        <td>132</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-partitioning-ii/">分割回文串 II</a></td>
        <td>41.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.343</td>
    </tr>
    <tr>
        <td>190</td>
        <td>161</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/one-edit-distance/">相隔为 1 的编辑距离</a></td>
        <td>31.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.727</td>
    </tr>
    <tr>
        <td>191</td>
        <td>340</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-substring-with-at-most-k-distinct-characters/">至多包含 K
            个不同字符的最长子串</a></td>
        <td>46.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.756</td>
    </tr>
    <tr>
        <td>192</td>
        <td>554</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/brick-wall/">砖墙</a></td>
        <td>35.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.351</td>
    </tr>
    <tr>
        <td>193</td>
        <td>814</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-pruning/">二叉树剪枝</a></td>
        <td>72.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.428</td>
    </tr>
    <tr>
        <td>194</td>
        <td>622</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-circular-queue/">设计循环队列</a></td>
        <td>39.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.148</td>
    </tr>
    <tr>
        <td>195</td>
        <td>833</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-and-replace-in-string/">字符串中的查找与替换</a></td>
        <td>37.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.991</td>
    </tr>
    <tr>
        <td>196</td>
        <td>859</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/buddy-strings/">亲密字符串</a></td>
        <td>27.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.331</td>
    </tr>
    <tr>
        <td>197</td>
        <td>470</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-rand10-using-rand7/">用 Rand7() 实现
            Rand10()</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.536</td>
    </tr>
    <tr>
        <td>198</td>
        <td>886</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/possible-bipartition/">可能的二分法</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.073</td>
    </tr>
    <tr>
        <td>199</td>
        <td>890</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-and-replace-pattern/">查找和替换模式</a></td>
        <td>69.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.653</td>
    </tr>
    <tr>
        <td>200</td>
        <td>895</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-frequency-stack/">最大频率栈</a></td>
        <td>45.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.073</td>
    </tr>
    <tr>
        <td>201</td>
        <td>987</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree/">二叉树的垂序遍历</a>
        </td>
        <td>36.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.765</td>
    </tr>
    <tr>
        <td>202</td>
        <td>1028</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/recover-a-tree-from-preorder-traversal/">从先序遍历还原二叉树</a>
        </td>
        <td>60.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.066</td>
    </tr>
    <tr>
        <td>203</td>
        <td>206</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list/">反转链表</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.027</td>
    </tr>
    <tr>
        <td>204</td>
        <td>221</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-square/">最大正方形</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.122</td>
    </tr>
    <tr>
        <td>205</td>
        <td>251</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-2d-vector/">展开二维向量</a></td>
        <td>51.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.119</td>
    </tr>
    <tr>
        <td>206</td>
        <td>279</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/perfect-squares/">完全平方数</a></td>
        <td>53.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.09</td>
    </tr>
    <tr>
        <td>207</td>
        <td>435</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-overlapping-intervals/">无重叠区间</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.265</td>
    </tr>
    <tr>
        <td>208</td>
        <td>480</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sliding-window-median/">滑动窗口中位数</a></td>
        <td>32.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.727</td>
    </tr>
    <tr>
        <td>209</td>
        <td>560</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarray-sum-equals-k/">和为K的子数组</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.171</td>
    </tr>
    <tr>
        <td>210</td>
        <td>694</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-distinct-islands/">不同岛屿的数量</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.28</td>
    </tr>
    <tr>
        <td>211</td>
        <td>701</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-into-a-binary-search-tree/">二叉搜索树中的插入操作</a>
        </td>
        <td>71.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.35</td>
    </tr>
    <tr>
        <td>212</td>
        <td>112</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/path-sum/">路径总和</a></td>
        <td>48.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>213</td>
        <td>268</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/missing-number/">缺失数字</a></td>
        <td>54.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>214</td>
        <td>748</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-completing-word/">最短完整词</a></td>
        <td>56.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.562</td>
    </tr>
    <tr>
        <td>215</td>
        <td>428</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/serialize-and-deserialize-n-ary-tree/">序列化和反序列化 N
            叉树</a></td>
        <td>62.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.479</td>
    </tr>
    <tr>
        <td>216</td>
        <td>557</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string-iii/">反转字符串中的单词 III</a>
        </td>
        <td>69.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.107</td>
    </tr>
    <tr>
        <td>217</td>
        <td>119</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pascals-triangle-ii/">杨辉三角 II</a></td>
        <td>59.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.08</td>
    </tr>
    <tr>
        <td>218</td>
        <td>11</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/container-with-most-water/">盛最多水的容器</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.027</td>
    </tr>
    <tr>
        <td>219</td>
        <td>22</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/generate-parentheses/">括号生成</a></td>
        <td>73.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>220</td>
        <td>90</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subsets-ii/">子集 II</a></td>
        <td>58.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.121</td>
    </tr>
    <tr>
        <td>221</td>
        <td>105</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/">从前序与中序遍历序列构造二叉树</a>
        </td>
        <td>63.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.072</td>
    </tr>
    <tr>
        <td>222</td>
        <td>107</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii/">二叉树的层次遍历
            II</a></td>
        <td>64.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.076</td>
    </tr>
    <tr>
        <td>223</td>
        <td>131</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-partitioning/">分割回文串</a></td>
        <td>65.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.149</td>
    </tr>
    <tr>
        <td>224</td>
        <td>147</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insertion-sort-list/">对链表进行插入排序</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.156</td>
    </tr>
    <tr>
        <td>225</td>
        <td>166</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fraction-to-recurring-decimal/">分数到小数</a></td>
        <td>25.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.281</td>
    </tr>
    <tr>
        <td>226</td>
        <td>178</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rank-scores/">分数排名</a></td>
        <td>60.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.148</td>
    </tr>
    <tr>
        <td>227</td>
        <td>184</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-highest-salary/">部门工资最高的员工</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.178</td>
    </tr>
    <tr>
        <td>228</td>
        <td>204</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-primes/">计数质数</a></td>
        <td>32.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.09</td>
    </tr>
    <tr>
        <td>229</td>
        <td>211</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-and-search-word-data-structure-design/">添加与搜索单词
            - 数据结构设计</a></td>
        <td>42.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.315</td>
    </tr>
    <tr>
        <td>230</td>
        <td>225</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-stack-using-queues/">用队列实现栈</a></td>
        <td>62.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.098</td>
    </tr>
    <tr>
        <td>231</td>
        <td>227</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator-ii/">基本计算器 II</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.245</td>
    </tr>
    <tr>
        <td>232</td>
        <td>242</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-anagram/">有效的字母异位词</a></td>
        <td>58.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>233</td>
        <td>255</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/verify-preorder-sequence-in-binary-search-tree/">验证前序遍历序列二叉搜索树</a>
        </td>
        <td>46.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.971</td>
    </tr>
    <tr>
        <td>234</td>
        <td>281</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/zigzag-iterator/">锯齿迭代器</a></td>
        <td>72.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.155</td>
    </tr>
    <tr>
        <td>235</td>
        <td>283</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/move-zeroes/">移动零</a></td>
        <td>59.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>236</td>
        <td>290</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-pattern/">单词规律</a></td>
        <td>41.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.172</td>
    </tr>
    <tr>
        <td>237</td>
        <td>292</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nim-game/">Nim 游戏</a></td>
        <td>69.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>238</td>
        <td>325</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k/">和等于 k
            的最长子数组长度</a></td>
        <td>45.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.825</td>
    </tr>
    <tr>
        <td>239</td>
        <td>336</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-pairs/">回文对</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.671</td>
    </tr>
    <tr>
        <td>240</td>
        <td>398</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/random-pick-index/">随机数索引</a></td>
        <td>58.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.566</td>
    </tr>
    <tr>
        <td>241</td>
        <td>529</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minesweeper/">扫雷游戏</a></td>
        <td>58.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.574</td>
    </tr>
    <tr>
        <td>242</td>
        <td>612</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-distance-in-a-plane/">平面上的最近距离</a></td>
        <td>61.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.148</td>
    </tr>
    <tr>
        <td>243</td>
        <td>1042</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flower-planting-with-no-adjacent/">不邻接植花</a></td>
        <td>46.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.658</td>
    </tr>
    <tr>
        <td>244</td>
        <td>94</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-inorder-traversal/">二叉树的中序遍历</a></td>
        <td>70.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.019</td>
    </tr>
    <tr>
        <td>245</td>
        <td>309</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/">最佳买卖股票时机含冷冻期</a>
        </td>
        <td>51.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.073</td>
    </tr>
    <tr>
        <td>246</td>
        <td>771</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jewels-and-stones/">宝石与石头</a></td>
        <td>81.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.058</td>
    </tr>
    <tr>
        <td>247</td>
        <td>374</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/guess-number-higher-or-lower/">猜数字大小</a></td>
        <td>42.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>248</td>
        <td>620</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/not-boring-movies/">有趣的电影</a></td>
        <td>74.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.1</td>
    </tr>
    <tr>
        <td>249</td>
        <td>633</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sum-of-square-numbers/">平方数之和</a></td>
        <td>32.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.08</td>
    </tr>
    <tr>
        <td>250</td>
        <td>946</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-stack-sequences/">验证栈序列</a></td>
        <td>53.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.219</td>
    </tr>
    <tr>
        <td>251</td>
        <td>361</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bomb-enemy/">轰炸敌人</a></td>
        <td>51.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.725</td>
    </tr>
    <tr>
        <td>252</td>
        <td>1107</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/new-users-daily-count/">每日新用户统计</a></td>
        <td>38.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.818</td>
    </tr>
    <tr>
        <td>253</td>
        <td>1149</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/article-views-ii/">文章浏览 II</a></td>
        <td>43.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.771</td>
    </tr>
    <tr>
        <td>254</td>
        <td>6</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/zigzag-conversion/">Z 字形变换</a></td>
        <td>46.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.021</td>
    </tr>
    <tr>
        <td>255</td>
        <td>45</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game-ii/">跳跃游戏 II</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.052</td>
    </tr>
    <tr>
        <td>256</td>
        <td>51</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/n-queens/">N皇后</a></td>
        <td>67.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>257</td>
        <td>52</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/n-queens-ii/">N皇后 II</a></td>
        <td>77.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.089</td>
    </tr>
    <tr>
        <td>258</td>
        <td>333</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-bst-subtree/">最大 BST 子树</a></td>
        <td>41.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.567</td>
    </tr>
    <tr>
        <td>259</td>
        <td>360</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-transformed-array/">有序转化数组</a></td>
        <td>62.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.797</td>
    </tr>
    <tr>
        <td>260</td>
        <td>379</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-phone-directory/">电话目录管理系统</a></td>
        <td>65.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.871</td>
    </tr>
    <tr>
        <td>261</td>
        <td>525</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contiguous-array/">连续数组</a></td>
        <td>41.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.333</td>
    </tr>
    <tr>
        <td>262</td>
        <td>602</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-requests-ii-who-has-the-most-friends/">好友申请
            II ：谁有最多的好友</a></td>
        <td>56.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.674</td>
    </tr>
    <tr>
        <td>263</td>
        <td>689</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-sum-of-3-non-overlapping-subarrays/">三个无重叠子数组的最大和</a>
        </td>
        <td>43.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.778</td>
    </tr>
    <tr>
        <td>264</td>
        <td>713</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarray-product-less-than-k/">乘积小于K的子数组</a></td>
        <td>34.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.279</td>
    </tr>
    <tr>
        <td>265</td>
        <td>986</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/interval-list-intersections/">区间列表的交集</a></td>
        <td>61.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.334</td>
    </tr>
    <tr>
        <td>266</td>
        <td>992</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarrays-with-k-different-integers/">K
            个不同整数的子数组</a></td>
        <td>24.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.476</td>
    </tr>
    <tr>
        <td>267</td>
        <td>1024</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/video-stitching/">视频拼接</a></td>
        <td>45.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.486</td>
    </tr>
    <tr>
        <td>268</td>
        <td>1041</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/robot-bounded-in-circle/">困于环中的机器人</a></td>
        <td>43.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.571</td>
    </tr>
    <tr>
        <td>269</td>
        <td>191</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-1-bits/">位1的个数</a></td>
        <td>64.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.038</td>
    </tr>
    <tr>
        <td>270</td>
        <td>274</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/h-index/">H指数</a></td>
        <td>37.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>271</td>
        <td>305</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands-ii/">岛屿数量 II</a></td>
        <td>31.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.747</td>
    </tr>
    <tr>
        <td>272</td>
        <td>359</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/logger-rate-limiter/">日志速率限制器</a></td>
        <td>68.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.448</td>
    </tr>
    <tr>
        <td>273</td>
        <td>496</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-greater-element-i/">下一个更大元素 I</a></td>
        <td>62.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.081</td>
    </tr>
    <tr>
        <td>274</td>
        <td>542</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/01-matrix/">01 矩阵</a></td>
        <td>37.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.156</td>
    </tr>
    <tr>
        <td>275</td>
        <td>621</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/task-scheduler/">任务调度器</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.095</td>
    </tr>
    <tr>
        <td>276</td>
        <td>680</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome-ii/">验证回文字符串 Ⅱ</a></td>
        <td>35.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>277</td>
        <td>690</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/employee-importance/">员工的重要性</a></td>
        <td>56.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.174</td>
    </tr>
    <tr>
        <td>278</td>
        <td>742</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/closest-leaf-in-a-binary-tree/">二叉树最近的叶节点</a></td>
        <td>45.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.202</td>
    </tr>
    <tr>
        <td>279</td>
        <td>836</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-overlap/">矩形重叠</a></td>
        <td>45.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.244</td>
    </tr>
    <tr>
        <td>280</td>
        <td>863</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree/">二叉树中所有距离为 K
            的结点</a></td>
        <td>46.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.378</td>
    </tr>
    <tr>
        <td>281</td>
        <td>929</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-email-addresses/">独特的电子邮件地址</a></td>
        <td>63.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.207</td>
    </tr>
    <tr>
        <td>282</td>
        <td>940</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/distinct-subsequences-ii/">不同的子序列 II</a></td>
        <td>42.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.811</td>
    </tr>
    <tr>
        <td>283</td>
        <td>981</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/time-based-key-value-store/">基于时间的键值存储</a></td>
        <td>35.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.642</td>
    </tr>
    <tr>
        <td>284</td>
        <td>314</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/binary-tree-vertical-order-traversal/">二叉树的垂直遍历</a></td>
        <td>52.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.647</td>
    </tr>
    <tr>
        <td>285</td>
        <td>338</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/counting-bits/">比特位计数</a></td>
        <td>74.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>286</td>
        <td>372</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/super-pow/">超级次方</a></td>
        <td>37.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.399</td>
    </tr>
    <tr>
        <td>287</td>
        <td>482</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/license-key-formatting/">密钥格式化</a></td>
        <td>38.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.146</td>
    </tr>
    <tr>
        <td>288</td>
        <td>637</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/average-of-levels-in-binary-tree/">二叉树的层平均值</a>
        </td>
        <td>62.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.105</td>
    </tr>
    <tr>
        <td>289</td>
        <td>642</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-search-autocomplete-system/">设计搜索自动补全系统</a>
        </td>
        <td>40.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.922</td>
    </tr>
    <tr>
        <td>290</td>
        <td>681</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-closest-time/">最近时刻</a></td>
        <td>46.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.747</td>
    </tr>
    <tr>
        <td>291</td>
        <td>684</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/redundant-connection/">冗余连接</a></td>
        <td>55.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.166</td>
    </tr>
    <tr>
        <td>292</td>
        <td>746</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/min-cost-climbing-stairs/">使用最小花费爬楼梯</a></td>
        <td>46.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.075</td>
    </tr>
    <tr>
        <td>293</td>
        <td>700</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-a-binary-search-tree/">二叉搜索树中的搜索</a>
        </td>
        <td>71.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>294</td>
        <td>703</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-a-stream/">数据流中的第K大元素</a>
        </td>
        <td>42.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.109</td>
    </tr>
    <tr>
        <td>295</td>
        <td>888</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fair-candy-swap/">公平的糖果交换</a></td>
        <td>51.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.221</td>
    </tr>
    <tr>
        <td>296</td>
        <td>905</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-array-by-parity/">按奇偶排序数组</a></td>
        <td>68.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>297</td>
        <td>907</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sum-of-subarray-minimums/">子数组的最小值之和</a></td>
        <td>27.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.351</td>
    </tr>
    <tr>
        <td>298</td>
        <td>733</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flood-fill/">图像渲染</a></td>
        <td>52.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.145</td>
    </tr>
    <tr>
        <td>299</td>
        <td>213</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber-ii/">打家劫舍 II</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.058</td>
    </tr>
    <tr>
        <td>300</td>
        <td>176</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/second-highest-salary/">第二高的薪水</a></td>
        <td>33.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.035</td>
    </tr>
    <tr>
        <td>301</td>
        <td>500</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/keyboard-row/">键盘行</a></td>
        <td>68.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.134</td>
    </tr>
    <tr>
        <td>302</td>
        <td>501</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-mode-in-binary-search-tree/">二叉搜索树中的众数</a>
        </td>
        <td>43.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.129</td>
    </tr>
    <tr>
        <td>303</td>
        <td>866</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/prime-palindrome/">回文素数</a></td>
        <td>19.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.503</td>
    </tr>
    <tr>
        <td>304</td>
        <td>38</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-and-say/">外观数列</a></td>
        <td>54.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.027</td>
    </tr>
    <tr>
        <td>305</td>
        <td>48</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-image/">旋转图像</a></td>
        <td>66.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.032</td>
    </tr>
    <tr>
        <td>306</td>
        <td>83</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list/">删除排序链表中的重复元素</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>307</td>
        <td>84</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-rectangle-in-histogram/">柱状图中最大的矩形</a>
        </td>
        <td>38.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.05</td>
    </tr>
    <tr>
        <td>308</td>
        <td>85</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-rectangle/">最大矩形</a></td>
        <td>44.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.078</td>
    </tr>
    <tr>
        <td>309</td>
        <td>87</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/scramble-string/">扰乱字符串</a></td>
        <td>44.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.206</td>
    </tr>
    <tr>
        <td>310</td>
        <td>91</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways/">解码方法</a></td>
        <td>23.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.04</td>
    </tr>
    <tr>
        <td>311</td>
        <td>93</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/restore-ip-addresses/">复原IP地址</a></td>
        <td>45.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.069</td>
    </tr>
    <tr>
        <td>312</td>
        <td>95</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-binary-search-trees-ii/">不同的二叉搜索树 II</a>
        </td>
        <td>61.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.069</td>
    </tr>
    <tr>
        <td>313</td>
        <td>106</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal/">从中序与后序遍历序列构造二叉树</a>
        </td>
        <td>66.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.062</td>
    </tr>
    <tr>
        <td>314</td>
        <td>115</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/distinct-subsequences/">不同的子序列</a></td>
        <td>46.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.153</td>
    </tr>
    <tr>
        <td>315</td>
        <td>116</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node/">填充每个节点的下一个右侧节点指针</a>
        </td>
        <td>53.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.076</td>
    </tr>
    <tr>
        <td>316</td>
        <td>117</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii/">填充每个节点的下一个右侧节点指针
            II</a></td>
        <td>44.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.1</td>
    </tr>
    <tr>
        <td>317</td>
        <td>118</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pascals-triangle/">杨辉三角</a></td>
        <td>65.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.029</td>
    </tr>
    <tr>
        <td>318</td>
        <td>120</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/triangle/">三角形最小路径和</a></td>
        <td>63.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>319</td>
        <td>123</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii/">买卖股票的最佳时机
            III</a></td>
        <td>40.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.064</td>
    </tr>
    <tr>
        <td>320</td>
        <td>124</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-maximum-path-sum/">二叉树中的最大路径和</a></td>
        <td>39.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.064</td>
    </tr>
    <tr>
        <td>321</td>
        <td>129</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sum-root-to-leaf-numbers/">求根到叶子节点数字之和</a></td>
        <td>61.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>322</td>
        <td>135</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/candy/">分发糖果</a></td>
        <td>41.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>323</td>
        <td>136</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number/">只出现一次的数字</a></td>
        <td>65.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.016</td>
    </tr>
    <tr>
        <td>324</td>
        <td>137</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number-ii/">只出现一次的数字 II</a></td>
        <td>65.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>325</td>
        <td>140</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break-ii/">单词拆分 II</a></td>
        <td>37.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.122</td>
    </tr>
    <tr>
        <td>326</td>
        <td>143</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reorder-list/">重排链表</a></td>
        <td>54.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.083</td>
    </tr>
    <tr>
        <td>327</td>
        <td>154</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array-ii/">寻找旋转排序数组中的最小值
            II</a></td>
        <td>46.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.109</td>
    </tr>
    <tr>
        <td>328</td>
        <td>162</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-peak-element/">寻找峰值</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.059</td>
    </tr>
    <tr>
        <td>329</td>
        <td>169</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element/">多数元素</a></td>
        <td>61.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.021</td>
    </tr>
    <tr>
        <td>330</td>
        <td>174</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/dungeon-game/">地下城游戏</a></td>
        <td>39.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.196</td>
    </tr>
    <tr>
        <td>331</td>
        <td>175</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combine-two-tables/">组合两个表</a></td>
        <td>71.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.027</td>
    </tr>
    <tr>
        <td>332</td>
        <td>179</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-number/">最大数</a></td>
        <td>35.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>333</td>
        <td>189</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-array/">旋转数组</a></td>
        <td>40.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>334</td>
        <td>192</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-frequency/">统计词频</a></td>
        <td>33.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.241</td>
    </tr>
    <tr>
        <td>335</td>
        <td>202</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/happy-number/">快乐数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>336</td>
        <td>203</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-linked-list-elements/">移除链表元素</a></td>
        <td>43.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.034</td>
    </tr>
    <tr>
        <td>337</td>
        <td>217</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate/">存在重复元素</a></td>
        <td>51.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    <tr>
        <td>338</td>
        <td>219</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate-ii/">存在重复元素 II</a></td>
        <td>37.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.047</td>
    </tr>
    <tr>
        <td>339</td>
        <td>222</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-complete-tree-nodes/">完全二叉树的节点个数</a></td>
        <td>66.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.107</td>
    </tr>
    <tr>
        <td>340</td>
        <td>223</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-area/">矩形面积</a></td>
        <td>42.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.207</td>
    </tr>
    <tr>
        <td>341</td>
        <td>232</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-queue-using-stacks/">用栈实现队列</a></td>
        <td>62.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>342</td>
        <td>266</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-permutation/">回文排列</a></td>
        <td>62.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.43</td>
    </tr>
    <tr>
        <td>343</td>
        <td>271</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/encode-and-decode-strings/">字符串的编码与解码</a></td>
        <td>50.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.811</td>
    </tr>
    <tr>
        <td>344</td>
        <td>276</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-fence/">栅栏涂色</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.446</td>
    </tr>
    <tr>
        <td>345</td>
        <td>280</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wiggle-sort/">摆动排序</a></td>
        <td>68.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.49</td>
    </tr>
    <tr>
        <td>346</td>
        <td>289</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/game-of-life/">生命游戏</a></td>
        <td>68.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.122</td>
    </tr>
    <tr>
        <td>347</td>
        <td>307</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-mutable/">区域和检索 - 数组可修改</a></td>
        <td>53.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.213</td>
    </tr>
    <tr>
        <td>348</td>
        <td>312</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/burst-balloons/">戳气球</a></td>
        <td>57.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.165</td>
    </tr>
    <tr>
        <td>349</td>
        <td>316</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-duplicate-letters/">去除重复字母</a></td>
        <td>37.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.183</td>
    </tr>
    <tr>
        <td>350</td>
        <td>326</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/power-of-three/">3的幂</a></td>
        <td>46.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>351</td>
        <td>330</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/patching-array/">按要求补齐数组</a></td>
        <td>40.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.567</td>
    </tr>
    <tr>
        <td>352</td>
        <td>335</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/self-crossing/">路径交叉</a></td>
        <td>30.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.703</td>
    </tr>
    <tr>
        <td>353</td>
        <td>337</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber-iii/">打家劫舍 III</a></td>
        <td>55.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>354</td>
        <td>345</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-vowels-of-a-string/">反转字符串中的元音字母</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.059</td>
    </tr>
    <tr>
        <td>355</td>
        <td>369</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/plus-one-linked-list/">给单链表加一</a></td>
        <td>59.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.66</td>
    </tr>
    <tr>
        <td>356</td>
        <td>385</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/mini-parser/">迷你语法分析器</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.427</td>
    </tr>
    <tr>
        <td>357</td>
        <td>418</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sentence-screen-fitting/">屏幕可显示句子的数量</a></td>
        <td>32.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.825</td>
    </tr>
    <tr>
        <td>358</td>
        <td>434</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-segments-in-a-string/">字符串中的单词数</a></td>
        <td>33.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.111</td>
    </tr>
    <tr>
        <td>359</td>
        <td>453</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-moves-to-equal-array-elements/">最小移动次数使数组元素相等</a>
        </td>
        <td>53.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.183</td>
    </tr>
    <tr>
        <td>360</td>
        <td>459</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-substring-pattern/">重复的子字符串</a></td>
        <td>45.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.121</td>
    </tr>
    <tr>
        <td>361</td>
        <td>477</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/total-hamming-distance/">汉明距离总和</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.305</td>
    </tr>
    <tr>
        <td>362</td>
        <td>487</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-consecutive-ones-ii/">最大连续1的个数 II</a></td>
        <td>53.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.818</td>
    </tr>
    <tr>
        <td>363</td>
        <td>490</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-maze/">迷宫</a></td>
        <td>44.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.614</td>
    </tr>
    <tr>
        <td>364</td>
        <td>523</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/continuous-subarray-sum/">连续的子数组和</a></td>
        <td>22.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.192</td>
    </tr>
    <tr>
        <td>365</td>
        <td>530</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/minimum-absolute-difference-in-bst/">二叉搜索树的最小绝对差</a></td>
        <td>55.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.133</td>
    </tr>
    <tr>
        <td>366</td>
        <td>545</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/boundary-of-binary-tree/">二叉树的边界</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.747</td>
    </tr>
    <tr>
        <td>367</td>
        <td>580</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/count-student-number-in-departments/">统计各专业学生人数</a></td>
        <td>48.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.595</td>
    </tr>
    <tr>
        <td>368</td>
        <td>617</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-binary-trees/">合并二叉树</a></td>
        <td>74.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.045</td>
    </tr>
    <tr>
        <td>369</td>
        <td>618</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/students-report-by-geography/">学生地理信息报告</a></td>
        <td>49.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.394</td>
    </tr>
    <tr>
        <td>370</td>
        <td>632</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/smallest-range-covering-elements-from-k-lists/">最小区间</a>
        </td>
        <td>33.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.551</td>
    </tr>
    <tr>
        <td>371</td>
        <td>652</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-duplicate-subtrees/">寻找重复的子树</a></td>
        <td>51.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.275</td>
    </tr>
    <tr>
        <td>372</td>
        <td>665</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-decreasing-array/">非递减数列</a></td>
        <td>21.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>373</td>
        <td>670</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-swap/">最大交换</a></td>
        <td>38.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.304</td>
    </tr>
    <tr>
        <td>374</td>
        <td>679</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/24-game/">24 点游戏</a></td>
        <td>40.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.414</td>
    </tr>
    <tr>
        <td>375</td>
        <td>683</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/k-empty-slots/">K 个空花盆</a></td>
        <td>37.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.825</td>
    </tr>
    <tr>
        <td>376</td>
        <td>718</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray/">最长重复子数组</a>
        </td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.183</td>
    </tr>
    <tr>
        <td>377</td>
        <td>805</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/split-array-with-same-average/">数组的均值分割</a></td>
        <td>24.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.099</td>
    </tr>
    <tr>
        <td>378</td>
        <td>849</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/maximize-distance-to-closest-person/">到最近的人的最大距离</a></td>
        <td>38.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.213</td>
    </tr>
    <tr>
        <td>379</td>
        <td>958</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/check-completeness-of-a-binary-tree/">二叉树的完全性检验</a></td>
        <td>46.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.338</td>
    </tr>
    <tr>
        <td>380</td>
        <td>977</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/squares-of-a-sorted-array/">有序数组的平方</a></td>
        <td>70.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>381</td>
        <td>1011</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/capacity-to-ship-packages-within-d-days/">在 D
            天内送达包裹的能力</a></td>
        <td>50.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.442</td>
    </tr>
    <tr>
        <td>382</td>
        <td>1060</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/missing-element-in-sorted-array/">有序数组中的缺失元素</a>
        </td>
        <td>46.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.112</td>
    </tr>
    <tr>
        <td>383</td>
        <td>1220</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-vowels-permutation/">统计元音字母序列的数目</a></td>
        <td>53.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.664</td>
    </tr>
    <tr>
        <td>384</td>
        <td>73</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/set-matrix-zeroes/">矩阵置零</a></td>
        <td>55.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.057</td>
    </tr>
    <tr>
        <td>385</td>
        <td>295</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-median-from-data-stream/">数据流的中位数</a></td>
        <td>42.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.134</td>
    </tr>
    <tr>
        <td>386</td>
        <td>729</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/my-calendar-i/">我的日程安排表 I</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.542</td>
    </tr>
    <tr>
        <td>387</td>
        <td>759</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/employee-free-time/">员工空闲时间</a></td>
        <td>56.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.309</td>
    </tr>
    <tr>
        <td>388</td>
        <td>329</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix/">矩阵中的最长递增路径</a></td>
        <td>39.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.151</td>
    </tr>
    <tr>
        <td>389</td>
        <td>673</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence/">最长递增子序列的个数</a>
        </td>
        <td>33.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.225</td>
    </tr>
    <tr>
        <td>390</td>
        <td>1027</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-arithmetic-sequence/">最长等差数列</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.386</td>
    </tr>
    <tr>
        <td>391</td>
        <td>503</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-greater-element-ii/">下一个更大元素 II</a></td>
        <td>52.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.127</td>
    </tr>
    <tr>
        <td>392</td>
        <td>32</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-valid-parentheses/">最长有效括号</a></td>
        <td>29.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.037</td>
    </tr>
    <tr>
        <td>393</td>
        <td>378</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix/">有序矩阵中第K小的元素</a>
        </td>
        <td>57.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.11</td>
    </tr>
    <tr>
        <td>394</td>
        <td>600</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-negative-integers-without-consecutive-ones/">不含连续1的非负整数</a>
        </td>
        <td>29.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.669</td>
    </tr>
    <tr>
        <td>395</td>
        <td>214</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-palindrome/">最短回文串</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.206</td>
    </tr>
    </tbody>
</table>